<template>
  <div class="icons">
    <swiper :options="swiperOption">
      <swiper-slide v-for="(page, index) of pages" :key="index">
        <div class="icon" v-for="item of page" :key="item.id">
          <div class='icon-img'>
            <img class='icon-img-content' :src='item.imgUrl' />
          </div>
          <p class="icon-desc">{{item.desc}}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import '~styles/variables.styl'
  @import '~styles/mixins.styl'
  .icons >>> .swiper-container
    height: 0
    padding-bottom: 50%
  .icons
    margin-top: .1rem
    .icon
        position: relative
        overflow: hidden
        float: left
        width: 25%
        height: 0
        padding-bottom: 25%
        .icon-img
          position: absolute
          top: 0
          left: 0
          right: 0
          box-sizing: border-box
          padding: .1rem
          bottom: .44rem
          .icon-img-content
            display: block
            margin: 0 auto
            height: 100%
        .icon-desc
          position: absolute
          left: 0
          right: 0
          bottom: 0
          height: .44rem
          line-height: .44rem
          text-align: center
          color: $darkTextColor
          ellipsis()
</style>